PCI/vmd: Create named irq domain

Use the fwnode to create a named domain so diagnosis works.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Keith Busch <keith.busch@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: linux-pci@vger.kernel.org
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Christoph Hellwig <hch@lst.de>
Link: http://lkml.kernel.org/r/20170619235444.379861978@linutronix.de

1 files changed, 7 insertions, 1 deletions

diff --git a/drivers/pci/host/vmd.c b/drivers/pci/host/vmd.c
index e27ad2a3bd33..31203d69616d 100644
--- a/drivers/pci/host/vmd.c
+++ b/drivers/pci/host/vmd.c
@@ -554,6 +554,7 @@ static int vmd_find_free_domain(void)
 static int vmd_enable_domain(struct vmd_dev *vmd)
 {
         struct pci_sysdata *sd = &vmd->sysdata;
+        struct fwnode_handle *fn;
         struct resource *res;
         u32 upper_bits;
         unsigned long flags;
@@ -617,8 +618,13 @@ static int vmd_enable_domain(struct vmd_dev *vmd)
 
         sd->node = pcibus_to_node(vmd->dev->bus);
 
-        vmd->irq_domain = pci_msi_create_irq_domain(NULL, &vmd_msi_domain_info,
+        fn = irq_domain_alloc_named_id_fwnode("VMD-MSI", vmd->sysdata.domain);
+        if (!fn)
+                return -ENODEV;
+
+        vmd->irq_domain = pci_msi_create_irq_domain(fn, &vmd_msi_domain_info,
                                                     x86_vector_domain);
+        irq_domain_free_fwnode(fn);
         if (!vmd->irq_domain)
                 return -ENODEV;